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Week 3: Green Machines — Sustainable Engineering

3rd Six Weeks | Agriculture, Food & Natural Resources Cluster | 5 class periods (50 min each)

Lesson Objective

Students explore environmental and sustainable engineering careers, complete the H&L "Ag-Tech Pest Patrol" drone-design Career Lab activity (Ch 2, pp. 28-35) where they design a pest-detection drone for a Texas tomato farm, analyze how changing societal needs create new careers, and complete the Xello Interests lesson + eDynamic Unit 7.1.

Demonstration of Learning

"I can describe sustainable engineering and environmental careers, explain how societal changes create new career opportunities, design a pest-detection drone with labeled features, and connect environmental challenges to specific job roles in the Ag cluster."

TEKS Alignment

  • d(1)(A): Analyze and discuss assessment results (Day 5 Xello Interests).
  • d(1)(C): Identify various career opportunities within the Ag cluster (Days 1-5).
  • d(1)(D): Research and evaluate emerging occupations related to career interest areas (Day 4 societal trends chart + Day 5 reflection).
  • d(5)(C): Analyze the effects of changing employment trends, societal needs, and economic conditions on career choices (Day 4).

Materials Needed

Career Connection

Sustainable engineering is one of the fastest-growing career fields as society responds to climate change, water scarcity, environmental regulations, and the need to feed more people with less land. Environmental engineers design systems to clean water and reduce pollution. Agricultural engineers design farm equipment, irrigation systems, and the drones that monitor crops. The Texas economy has a huge stake in this. Texas leads the country in many crop categories, and labor shortages plus climate stress make ag-tech careers some of the most promising in the state.

What is Happening at Irving ISD? Sustainable Engineering (Nimitz HS) leads to AutoDesk CAD and Inventor certifications, the same software professional ag and environmental engineers use to design drones, irrigation systems, and field equipment.

Vocabulary

  • Environmental Engineer: Uses engineering principles to solve environmental problems like water pollution, waste management, and air quality.
  • Agricultural Engineer: Designs farm machinery, irrigation systems, drones, and food processing equipment.
  • Precision Agriculture: Using technology like GPS, drones, and sensors to optimize farming practices.
  • Multispectral Imaging: Special cameras that capture light beyond the visible range to detect plant health, water stress, and pests.
  • Engineering Design Process: A repeating cycle: Define → Research → Plan/Design → Build/Prototype → Test → Improve.
  • Societal Need: A changing requirement of society (climate awareness, food security, pollution control) that creates demand for new careers.

Bridge to Theory (Hats & Ladders)

The H&L workbook (Ch 2) anchors this week with Ag-Tech Pest Patrol (Ch 2, pp. 28-35): a multi-day Career Lab activity where students design a drone that helps Texas tomato farmers detect pests early before they destroy crops. The activity includes three sets of field notes (from a Plant Scientist, a Farmer, and an Engineer), a research step, a sketch step, and a peer feedback step. This activity puts students in the role of an Agricultural Engineer or Drone Operator, the same emerging careers they researched in Week 2, and lets them experience the engineering design process firsthand.

IISD Instructional Strategies

  • Modeling: Teacher walks through the engineering design process visually on the board before students start the drone design.
  • Chunking: The Pest Patrol activity is broken into 3 days (read field notes → research → sketch → peer feedback) instead of a single overwhelming session.
  • Sentence Stems: "Society is changing in the area of _, so a new career like is growing because __."
  • Active Monitoring: During the drone sketch, circulate with a 3-question check (What sensors? How does it fly? How does it handle Texas weather?).

Week at a Glance

Day Focus Key Activities Deliverable
1 Environmental Careers + Climate Connection H&L Environmental pathway exploration + NASA Climate Kids tour Notes on 2 environmental careers
2 Pest Patrol. Read the Field Notes H&L "Ag-Tech Pest Patrol" Steps 1-2 (Ch 2, pp. 28-32) Field notes summary worksheet
3 Pest Patrol. Drone Sketch H&L "Ag-Tech Pest Patrol" Step 3 (Ch 2, p. 33): design and label the drone Labeled drone sketch with annotations
4 Pest Patrol. Peer Feedback + Societal Trends H&L "Ag-Tech Pest Patrol" Step 4 (Ch 2, pp. 34-35) + societal trends chart Peer feedback form + revised drone notes
5 Xello Interests + eDynamic 7.1 Xello Interests lesson + eDynamic Unit 7.1: Progressive and Adaptable Xello completion screenshot + eDynamic progress

Formative Assessment

  • Environmental Hat notes + Mini-Case exit ticket (DFW lead-in-water; pick career + back with data + Climate Kids topic). Day 1, d(1)(C)
  • Field notes summary + constraints + Ranked Justification exit ticket (4 drone constraints ranked). Day 2, d(1)(C)
  • Drone sketch + rationale + SCR exit ticket (feature + cut-feature + engineer task faster). Day 3, d(1)(C)
  • Peer feedback + societal trends chart + Comparison Matrix exit ticket (2 societal changes x new/changing career). Day 4, d(1)(D), d(5)(C)
  • Xello Interests + eDynamic 7.1 + Concept Map exit ticket (3SW favorite career + Xello interest + Nimitz pathway + self-pattern). Day 5, d(1)(A), d(1)(C)

Summative Assessment

Ag-Tech Pest Patrol Drone Brief: Students submit (1) the labeled drone sketch with all required features, (2) a 1-paragraph design rationale explaining how their drone solves the field-note problems, and (3) a societal trends chart with at least 5 rows showing how changing needs create new ag careers. Scored on engineering reasoning (does the design address pest detection?), connection to Texas weather constraints (d(1)(D)), and societal-needs analysis depth (d(5)(C)).

Differentiation

Scaffolded Learning

  • Pre-printed drone outline with arrow lines showing where to label parts
  • Field notes summary worksheet with one row pre-filled as a model
  • Sentence stems for the design rationale paragraph
  • Pair work option for the drone sketch (designer + scribe)

Extensions

  • Add a "drone version 2" sketch that handles a different Texas pest (e.g., grasshoppers in cotton fields, fire ants in pastures)
  • Calculate the cost of a real ag drone (DJI Agras T40 = ~$30,000) vs. the savings from earlier pest detection
  • Research one real ag-tech company in Texas (e.g., Hylio, Skydio) and read about their drones

ELL Language Support

  • Pre-teach: Drone = Dron, Pest = Plaga, Sensor = Sensor, Engineer = Ingeniero/a, Crop = Cultivo
  • Bilingual field notes summary worksheet
  • The drone sketch is highly visual, students who struggle with English text can label parts with bilingual or Spanish-only annotations
  • Pair with bilingual peers during peer feedback